I never had a 6-06 or the AI version. I opted for the 257 Weatherby with zero freebore instead and the 6.5 Rem mag AI.

I hunted coyotes, chucks, crows, jack rabbits, never had to shoot more than 450 yards...I just liked to blow the hell out of them, then hang them up in a tree and do some bullet testing on them...if there was anything left.

Ya'll are hair splitting and the 6mm/244 AI will beat the 243 AI in case capacity every time...plus I've never had ANY problems getting x57 brass...OR 234/308. It's nothing but a matter of choice...be a man...make your own and screw the rest...(evil smile and LOL)